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Finding the Fourth Proportional to 339,387.14, 468,326.94 and 196,156.46

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Solution

The fourth proportional to 339,387.14, 468,326.94 and 196,156.46 is: 270,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,387.14 : 468,326.94 = 196,156.46 : x
  2. Step 2: Convert to fraction form
    339,387.14/468,326.94 = 196,156.46/x
  3. Step 3: Cross multiply
    339,387.14x = 468,326.94 × 196,156.46
  4. Step 4: Simplify right side
    339,387.14x = 91,865,354,673.03
  5. Step 5: Solve for x
    x = 91,865,354,673.03/339,387.14
  6. Step 6: Final answer
    x = 270,680.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.